OK, thanks to multiple folks for letting me know that I was looking at the wrong "top" metric. That said, my performance in most definitely suffering -- does this "swap" number seem excessive (looks like ~100 G to me): Swap: 102399992k total
> Cached data is not a problem. Don't worry about that. As for my concerns about the cache'ing of files, we have found that we can reclaim our servers performance by doing the following: sync echo 1 > /proc/sys/vm/drop_caches But I am really squeamish about this - it just seems like something is wrong with this approach. The grinding halt will occur when doing either a large copy from PG, or from tests where we created then closed a huge number of largeish files. CentOS (regularly updated) is the Linux that we are running. Thanks also for the settings pointers, and the notion that I can do a restore with different settings than production. And also, I will give the alternatives to "cat" a whirl. Thanks to everyone, r.b. -- Sent via pgsql-admin mailing list (pgsql-admin@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-admin
